jace is a java-based apple computeremulator. It is a faithful cycle-accurate emulation of an apple //e computer. The modular framework allows additional features to be swapped in without any massive rearchitecting of the codebase..

Speccy is a Sinclair ZX Spectrum home computeremulator. It will run software written for Spectrum 16k, 48k, 128k, +2, +2A, +3, Timex Sinclair, Pentagon, and Skorpion home computers. Features:

* Specifically optimized for Android devices, using ARM assembler and running at the same speed as a real Spectrum.* Full screen portrait mode emulation, with options for simulating TV scanlines and fuzzy TV display.* Records soundtrack to MIDI files.* Includes both physical and touch screen keyboard support.

* Specifically optimized for Android devices, using ARM assembler and running at the same speed as a real Spectrum.* Full screen portrait mode emulation, with options for simulating TV scanlines and fuzzy TV display.* Records soundtrack to MIDI files.* Includes both physical and touch screen keyboard support.

fMSX is an MSX home computeremulator. It runs MSX, MSX2, and MSX2+ games and other software on your Android phone or tablet. Play MSX games with Bluetooth gamepads, Xperia gaming buttons, Moga gamepads, or iCade joysticks. Save gameplay at any time and restart once you get killed. Record MSX music to MIDI files and use them as ringtones. Play with friends over WiFi or Internet, using NetPlay. Play on a 55" GoogleTV screen, using your remote controller or USB joystick.

* Optimized for Android devices using assembler and 3D hardware acceleration, and running MSX software at the fastest possible speed.

fMSX is an MSX home computeremulator. It runs MSX, MSX2, and MSX2+ games and other software on your Android phone or tablet. Play MSX games with Bluetooth gamepads, Xperia gaming buttons, Moga gamepads, or iCade joysticks. Save gameplay at any time and restart once you get killed. Record MSX music to MIDI files and use them as ringtones. Play with friends over WiFi or Internet, using NetPlay. Play on a 55" GoogleTV, using your remote or a USB joystick.

* Optimized for Android devices using assembler and 3D hardware acceleration, and running MSX software at the fastest possible speed.

GXemul is a full-system computeremulator, emulating processors (ARM, MIPS, M88K, PowerPC, and SuperH) and surrounding peripherals, in some cases well enough to let unmodified guest operating systems run as if they were running on real hardware..

Tunguska is a ternary computeremulator. The goal is to provide a relatively easy-to-use platform, reminiscent of an early PC, for people who want to experience and experiment with ternary computing hands-on..

PitchPerfect is a highly accurate professional guitar tuner with a very simple to use interface. PitchPerfect eliminates the need to tune an instrument to some kind of conventional tuning. Instead, PitchPerfect can automatically detect whatever note you are playing. This means you are not constrained by standard tunings, or even well known alternative tunings. You can simply tune your strings quickly and easily to any note you want!
Features:
~ Tune to absolutely any note you want.
~ None of the constraints of conventional tuning patterns.

PitchPerfect is a highly accurate professional guitar tuner with a very simple to use interface. PitchPerfect eliminates the need to tune an instrument to some kind of conventional tuning. Instead, PitchPerfect can automatically detect whatever note you are playing. This means you are not constrained by standard tunings, or even well known alternative tunings. You can simply tune your strings quickly and easily to any note you want! Features: * Tune to absolutely any note you want. * None of the constraints of conventional tuning patterns.

SimpleJ is a Java-based tool that can emulate a simplified computer on your PC. A retro-style video game console lets you understand how a computer works and write your own video game programs.

The first microcomputers were quite simple. They had a few kilobytes of memory and couldn't run large programs.

Many didn't even have an operating system. Yet they had something valuable: understanding everything about their hardware and software was easy. SimpleJ aims to make this possible while running on modern PC hardware.

Though it was created first order to test some sound processing ideas, it became then ready to use free of pay complete program for repetition and recording with it's own sound. So this is not emulation of any really existing stuff.

OOBOX Instrument Tuner v2.0.
Guitar Tuner!
OOBOX Instrument Tuner V2.0 can help you to tune your instrument
- By ear
If your computer can play MIDI Sounds, OOBOX Tuner will play one sound for each string, you just have to reproduce the same sound on your instrument.
- Using the digital tuner.
If your computer can record the sound of your guitar (with a microphone or a direct cable), OOBOX Tuner can show you graphically the distance between the good note and the note you are playing : just adjust the needle !.

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